NOTE: You must set the serial port to the fixed speed so that the modemwill not adjust the serial port speed to the negotiated line speed.10. To save the new modem settings, type at&w0 at the prompt. Press Enter.The modem sends an OK message. The modem is now ready to be connected to theswitch.Connecting the Modem to the Console PortThe console port on every J-EX Series switch accepts a cable with an RJ-45 connector.Figure 49 on page 108 shows the RJ-45 connector of the Ethernet cable supplied with theswitch.Figure 49: Ethernet Cable ConnectorNOTE: If your laptop or PC does not have a DB-9 male connector pin and youwant to connect your laptop or PC directly to the switch, use a combinationof the RJ-45-to-DB-9 female adapter supplied with the switch and aUSB-to-DB-9 male adapter. You must provide the USB-to-DB-9 male adapter.NOTE: Most modems have an RS-232 DB-25 connector. You must separatelypurchase an adapter to connect your modem to the RJ-45-to-DB-9 adapterand Ethernet cable supplied with the switch.To connect a modem to the console port:1. Turn off power to the switch.2. Turn off power to the modem.3. Connect one end of the cable to the console port (labeled CON or CONSOLE) on theswitch.For the location of the console port, see “Front Panel of a J-EX4500 Switch” on page 8.4. Connect the other end of the cable to the RJ-45-to-DB-9 serial port adapter suppliedwith your switch.5. Connect the serial port adapter to the DB-9-female-to-DB-25-male adapter or otheradapter appropriate for your modem.6. Plug the modem adapter into the DB-25 connector on the modem.7. Connect one end of the phone cable to the modem and the other end to your telephonenetwork.108Dell PowerConnect J-Series J-EX4500 Ethernet Switch Hardware Guide
